Re: [RFC PATCH] crypto: crc32c-pclmul - Use pmovzxdq to shrink K_table

Tim Chen
2014-05-30T16:10:51Z

On Fri, 2014-05-30 at 01:25 -0400, George Spelvin wrote:

>
> Averaging the 8K bytes per update, I do see an average of 3.2 cycles per
> operation (that is, per 8K of data processed) lost, or about 1 cycle per
> (3K or less) block processed. I'm hoping the reduced D-cache polution
> makes it up somewhere else.

That's very small (less than 0.2%) so I think it's acceptable.

Tim